NullPointerException при попытке ссылки на элементы из файла XML

Здравствуйте, Гайз! Я столкнулся с Исключением с нулевым указателем при попытке ссылки на recyclerView из XML-файла. Я использовал Butterknife, чтобы внедрить представления, я также попытался использовать обычный метод findViewById(), но я все еще получаю то же исключение nullpointer. Может ли кто-нибудь помочь мне понять, откуда исходит ошибка? заранее спасибо

Файл DashBoardFragment.java

import android.os.Bundle;
import android.support.v4.app.Fragment;

import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.cyanidesystems.gceq_bank.R;
import com.cyanidesystems.gceq_bank.adapters.QuestionPaperRecyclerViewAdapter;
import com.cyanidesystems.gceq_bank.models.QuestionPaperModel;

import java.util.ArrayList;
import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.Unbinder;

/**
 * A simple {@link Fragment} subclass.
 */
public class DashBoardFragment extends Fragment {
    List<QuestionPaperModel> questionPapers;
    @BindView(R.id.rvQuestPapers)
    RecyclerView rvQuestPapers;
    Unbinder unbinder;



    public DashBoardFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment

        View view = inflater.inflate(R.layout.fragment_dash_board, container, false);

        initializeData();
        unbinder = ButterKnife.bind(this, view);
        LinearLayoutManager llm = new LinearLayoutManager(this.getContext());
        rvQuestPapers.setHasFixedSize(true);//Null pointer exception arises from this line when i want to reference a recyclerview in fragment_dash_board.xml
        rvQuestPapers.setLayoutManager(llm);
        QuestionPaperRecyclerViewAdapter questionPaperRecyclerViewAdapter = new QuestionPaperRecyclerViewAdapter(this.getContext(), questionPapers);
        rvQuestPapers.setAdapter(questionPaperRecyclerViewAdapter);
        return view;
    }

    private void initializeData() {
        questionPapers = new ArrayList<>();
        questionPapers.add(new QuestionPaperModel("01", "COMPUTER SCIENCE", "0595", "I", "2017", "music.jpg"));
        questionPapers.add(new QuestionPaperModel("02", "PYHSICS", "0565", "I", "2016", "music.jpg"));
    }


    @Override
    public void onDestroyView() {
        super.onDestroyView();
        unbinder.unbind();
    }
}

фрагмент_dash_board.xml файл

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.cyanidesystems.gceq_bank.fragments.DashBoardFragment">

    <!-- TODO: Update blank fragment layout -->
    <android.support.v7.widget.RecyclerView
        android:id="@+id/rvQuestPapers"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        />

</FrameLayout>

Логическое сообщение об исключении null

05-13 12:27:09.703 3631-3631/? E/AndroidRuntime: FATAL EXCEPTION: main
                                                 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.cyanidesystems.gceq_bank/com.cyanidesystems.gceq_bank.MainActivity}: java.lang.NullPointerException
                                                     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
                                                     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
                                                     at android.app.ActivityThread.access$600(ActivityThread.java:130)
                                                     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
                                                     at android.os.Handler.dispatchMessage(Handler.java:99)
                                                     at android.os.Looper.loop(Looper.java:137)
                                                     at android.app.ActivityThread.main(ActivityThread.java:4745)
                                                     at java.lang.reflect.Method.invokeNative(Native Method)
                                                     at java.lang.reflect.Method.invoke(Method.java:511)
                                                     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
                                                     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
                                                     at dalvik.system.NativeStart.main(Native Method)
                                                  Caused by: java.lang.NullPointerException
                                                     at com.cyanidesystems.gceq_bank.fragments.DashBoardFragment.onCreateView(DashBoardFragment.java:50)
                                                     at android.support.v4.app.Fragment.performCreateView(Fragment.java:2354)
                                                     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1419)
                                                     at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1740)
                                                     at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1809)
                                                     at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:799)
                                                     at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2580)
                                                     at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2367)
                                                     at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2322)
                                                     at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2229)
                                                     at android.support.v4.app.FragmentManagerImpl.dispatchStateChange(FragmentManager.java:3221)
                                                     at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:3171)
                                                     at android.support.v4.app.FragmentController.dispatchActivityCreated(FragmentController.java:192)
                                                     at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:560)
                                                     at android.support.v7.app.AppCompatActivity.onStart(AppCompatActivity.java:177)
                                                     at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1163)
                                                     at android.app.Activity.performStart(Activity.java:5018)
                                                     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2032)
                                                     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 
                                                     at android.app.ActivityThread.access$600(ActivityThread.java:130) 
                                                     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 
                                                     at android.os.Handler.dispatchMessage(Handler.java:99) 
                                                     at android.os.Looper.loop(Looper.java:137) 
                                                     at android.app.ActivityThread.main(ActivityThread.java:4745) 
                                                     at java.lang.reflect.Method.invokeNative(Native Method) 
                                                     at java.lang.reflect.Method.invoke(Method.java:511) 
                                                     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
                                                     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
                                                     at dalvik.system.NativeStart.main(Native Method) 

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